Separator.



N0. 636,0!7. Patented Oct. 3|, I899. B. F. WENTZ. SEPARATOB.

(Application filed Aug. 2, 1898.)

2 Sheets-Sheet I.

(No Model) /N VE N TUB WITNESSES A TTORNE Y8.

UNITED STATES PATENT trics.

ROBERT FILLMORE VENTZ, OF SIEGFRIED, PENNSYLVANIA.

SEPARATO R.

SPECIFICATION forming part of Letters Patent No. 636,017, dated October31, 1899.

Application filed August 2, 1898. Serial No. 637,564. (No model.)

To all whom it may concern.-

Be it known that 1, ROBERT FILLMORE WENTZ, of Siegfried, in the countyof Northampton and State of Pennsylvania, have invented a new andImproved Separator, of which the following is a full, clear, and exactdescription.

The object of the invention is to provide a new and improved separatorwhich-is simple and durable in construction, very efiective inoperation, and more especially designed material under treatment.removable from the screen-frame O to permitfor thoroughly separating,bolting, or screening cement, ores, sand, clay, or other materials.

The invention consists of novel features and parts and combinations ofthe same, as will be fully described hereinafter and then pointed out inthe claims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a side elevation of the improvement. Fig. 2 is a sectionalside elevation of the same on the line 2 2 in Fig. 3. Fig. .2 is anenlarged detail sectional view illustrating the feed-casing. Fig. 3 isan end elevation of the improvement with part of the casing broken out.Fig. 4 is a face view of the feedbar. Fig. 5 is a partial side elevationof one of the side bars of the screen-frame partly broken away, and Fig.6 is an end elevation of the feeding device.

The improved separator is mounted on a suitably-constructed frame A,supporting an inclined casing B, having a portion of its sides open forthe reception of a rectangular screen frame 0, comprising transverse'endbars 0 O and spring side bars 0 secured by plates 0 to the endcross-bars 0 G The side bars 0 are preferably made of hickory wood, soas to yield when a shaking motion is given to the bars, as hereinaftermore fully described. The screen-frame 0 extends in an inclinedposition, screens D being held removably in the top of the frame 0, asis plainly indicated in Fig. 2, and said screen has the usualscreencloth E, of any desired mesh, accordingto the of convenientlyproviding the separator with different-meshed screen-cloths, accordingto The screen D is the material to be treated, each screen having spacedlongitudinal bars D extending under thecloth, so as to properly supportthe same.

The side bars 0 of the screen-frame C are connected at their middle withthe eccentricrods F of eccentrics F, secured on a transversely-extendingshaft Gr, journaled in suitable bearings held on the frame A. One outerend of the shaft G is provided with a pulley G for imparting a rotarymotion to the shaft G, so that the eccentrics F by the rods F impart ashaking motion to the screenframe 0. The ends of the cross-bars O O ofthe screen-frame extend beyond the sides of the casing B, and the saidends work between bolts H, held adjustably in keepers I 1, se-

cured to the frame'A, each keeper being formed with segmental slots 1engaged by bolts I held on the frame A, so that when the bolts areloosened the keepers can be adjusted to give a desired inclination tothe screen-frame O and the screen carried thereby. The bolts H serve tolimit the motion of the end bars of the screen-frame 0 according to thethrow of the eccentrics F, it being understood that the play or movementof the cross-bars O 0 between the stop-bolts II is somewhat less thanthe stroke of the eccentrics F and the movement given to the screenframeat the middle thereof, it being also understood that the spring sidebars 0 yield sufficiently to compensate for the difference in themovement at the middle and ends of the screen-frame. The bolts have tobe adjusted when the keepers I I are moved into different positions togive a different angle or inclination to the screen-frame O.

In order to readily adjust the screen-frame at diiferent angles, I makethe connection between the eccentric-rods and side bars C as shown indetail in Fig. 5. Near the outer end of each eccentric-rod F is held arounded collar F ,fittin g into a correspondingly-shaped recess in thespring-bar G and the end of the rod F beyond the collar passes looselythrough an enlarged opening in the bar 0 to permit of turning thelatter,and consequently the entire screen-frame, on the collars F asthe'fulcrum. A handled nut F- screws on the extreme outer threaded endof the rod F against an eye-washer F held on the-top of the bar C itbeing understood that the nuts F are loosened when the screen-frame isto be adjusted at a different angle, and when the adjustment is made thenuts are screwed up to fasten the bars securely to the eccentric-rods F.

On the upper end of the screen-frame C, within the casing B, is arrangeda feed-board J, provided near its lower end with a transversely-extending feed-bar J, formed with notches or serrations J (seeFig. 4,) for evenly feeding the material onto the upper end of the clothE of the screen. The feedboard J receives the material from theupwardly-extending discharge-spout K of a conveyor-casing K, containinga conveyor L in the form of a spiral blade secured on a transverse shaftL, journaled in suitable hearings on the frame A, the shaft alsosupporting the casing K. On the top of the casing and near one endthereof is held a receiving-hopper K into which the material isdelivered from a suitable place of supply. The spout K is inclined, asplainly indicated in Fig. (5, from the hopper K in a downward direction,and the casing K is preferably held adj ustably or turnably on the shaftL to bring the feedspout higher or lower relative to the feedboard J.Fig. 2 shows the feed-casing K with the feed-spout K in differentpositions. (Indicated by full and dotted lines.) By the constructiondescribed a more even or uniform feed is obtained, according to thenature of the material under treatment.

One outer end of the shaft L is provided with a pulley L connected withother machinery for imparting a rotary motion to the conveyer L, so thatthe material passed into the casing K is distributed throughout thecasing and is readily discharged in even quantities over the edge of theoutlet K and falls upon the feed-board J and from the latter passesthrough the notches J 2 of thefeed-bar J upon the upper end of the clothE.

As the screen-frame 0 receives a shaking motion from the eccentrics, aspreviously explained, it is evident that the material in its downwardmotion over the screen-cloth E is properly screened or bolted, the finermaterial passing to the inclined bottom B of the box B and sliding downthe same through a chute O to a suitable place of discharge, thetailings passing down over the screen-cloth E in the upper portion ofthe' casing B and finally discharging into a chute P for delivering thetailings in a separate heap.

The bolts H, held adjustably in the keepers I and I, serve to adjustwith the greatest accuracy the stroke and vibration of the sieveframeand sieve, according to the nature and condition of the material undertreatment, to insure a proper separation and to keep the meshes of thescreen-cloth or wire-nettin g free from clogging. Thus for dry materialless vibration is necessary than for wet or damp material, and by theoperator being enabled to adjust the stroke of the sieve-frame andscreening-cloth superior results are the consequence. It is understoodthat the side bars 0 of the screen-frame give the desired elasticity tothe stroke or vibration of the sieveframe, so that there is nodead-strokeagainst the adjustable stop-bolts II.

The machine is very simple and durable in construction, is not liable toget out of order, and by the adjustability of the screen-frame C adifferent angle can be given to the screencloth, so that material ofdifferent grades of fineness can be bolted without changing the cloth.The adjustment of the keepers and the bolts is very simple, requiring noskilled labor for this work.

By the arrangement of the conveyor feedboard and feed-bar the materialis distributed in a thin sheet over the whole width of the cloth at thetime the cloth is worked with the proper motion, so that a properbolting is insured and the meshes of the cloth always remain openwithout danger of clogging.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. A separator provided with a main frame, a screen,means acting on the screen at about the center for imparting a shakingmotion to the screen, stops for engaging the ends of the screen at thetop and bottom, and keepers adj ustably held on the main frame and inwhich the said stops are adjustably held, substantially as shown anddescribed.

2. A separator provided with a screen-frame, having proj eetin g endbeams, a feed-board at the upper end of the screen-frame, means fordischarging the material on said feed-board, bolts for engaging said endbeams at the top and bottom, adjustable keepers in which the said boltsare adjustably held, and eccentrics provided with eccentric-rodsadjustably connected with the said screen-frame, substantially as shownand described.

3. Aseparato'r provided withascreen-frame having spring side bars, meansfor feeding material to the upper end of said screen, eccentricsconnected by theireccentric-rods with the said spring-bars, anadjustable connection between the eccentric-rods and the side bars topermit of moving the screen-frame into a different angular position, andstops for limiting the motion of the screen at the ends, substantiallyas shown and described.

4. A separator provided with a screen-frame having spring side bars andprojecting end beams, bolts for engaging said end beams at the top andbottom, adjustable keepers in which the said bolts are adjustably held,and eccentrics provided with eccentric-rods adjustably connected withthe middle of said spring side bars, substantially as shown anddescribed.

5. A separator provided with a screen-frame having projecting end beams,bolts for engaging said end beams at the top and bottom, keepers inwhich the said bolts are adjustably held, said keepers being adjustablyheld on the main frame to permit of giving the desired inclination tothe screen-frame and means connected with the middle of the frame forimparting a shaking motion thereto, substantially as shown anddescribed.

6. A separator provided with a screen-frame having projecting end beams,bolts for en gaging said end beams at the top and the bottom, adjustablekeepers in which the said bolts are ad justably held,th'e said keepersbeing formed with segmental slots,bolts engaging said slots, and meansconnected with the middle of the screen-frame for imparting a shakingmotion thereto,substantially as shown and described.

7 In a separator, a screen-frame, an eccentric provided with aneccentric-rod, the said eccentric-rod extending loosely through anopening in the screen-frame and provided with a rounded collar en gaginga recess in the under side of the frame, the said collar serving as afulcrum to permit of moving the screen-frame into a different angularposition, means forsecuring the framein position on the eccentric-rodand means for limiting the motion of the screen at the ends,substantially as shown and described.

8. A separator provided with a screen-frame having spring side bars andprojecting end beams, eccentrics connected by their eccenhaving alongitudinal discharge-spout, a conveyer Within the casing and havingits shaft journaled in bearings in the frame, the said feed-casing beingmounted to turn on the said shaft, substantially as described.

10. A separator provided with a screen having a feed-board at its upperend, means for imparting a shaking motion to said screen, a feed-easingprovided with an inclined discharge-spout adapted to discharge onto thesaid feed-board, and a conveyor contained in said casing and having itsshaft journaled in bearings on the frame of the machine, the saidfeed-easing being mounted to turn on the conveyer-shaft as and for thepurpose set forth.

ROBERT FILLMORE WENTZ.

W'itnesses:

CLIFFORD D. NEWHARD, JAMns E. KOCHER.

